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[1.15.1] How to import OBJ files as block models


MaxHyper
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I know 1.15 is still quite new, but has anybody figured out how to use .obj files as models? Since 1.15 changed the whole rendering system solutions for 1.14 do not work.
The main issue is that OBJLoader.INSTANCE.addDomain() no longer exists.
Thanks in advance.

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You don't need to do that call anymore, it just works™️ if you reference the model from your blockstate json

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On 1/9/2020 at 11:00 PM, Cadiboo said:

You don't need to do that call anymore, it just works™️ if you reference the model from your blockstate json

Okay ive been trying for a while and havent been able to figure it out. When i reference the obj file from the blockstate i get an error where its adding ".json" to the end on its own. 

[00:19:43] [Server-Worker-6/WARN] [minecraft/ModelBakery]: Unable to load model: 'brassnsteam:block/obj/pipe_core_valve.obj' referenced from: brassnsteam:iron_pipe#center=true,down=true,east=true,north=true,south=true,up=true,waterlogged=true,west=true: java.io.FileNotFoundException: brassnsteam:models/block/obj/pipe_core_valve.obj.json

Is there nothing i need to do in the code? Messing with the blockstate only seems to not be enough. 

Edited by MaxHyper
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4 hours ago, MaxHyper said:

Okay ive been trying for a while and havent been able to figure it out. When i reference the obj file from the blockstate i get an error where its adding ".json" to the end on its own. 


[00:19:43] [Server-Worker-6/WARN] [minecraft/ModelBakery]: Unable to load model: 'brassnsteam:block/obj/pipe_core_valve.obj' referenced from: brassnsteam:iron_pipe#center=true,down=true,east=true,north=true,south=true,up=true,waterlogged=true,west=true: java.io.FileNotFoundException: brassnsteam:models/block/obj/pipe_core_valve.obj.json

Is there nothing i need to do in the code? Messing with the blockstate only seems to not be enough. 

Edited 4 hours ago by MaxHyper

I would like to help you, but unfortunately I do not know the answer to your problem.

New in Modding? == Still learning!

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Post your logs + BlockState json & model

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6 hours ago, Cadiboo said:

Post your logs + BlockState json & model

The only log I have that is meaningful is the line on my previous comment. 

 

Here's the blockstate, the obj part is only the second bit.

{
  "multipart": [
    {   "when": { "center": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core" }
    },
    {
      "apply": { "model": "brassnsteam:block/pipes/attachments/pipe_core_valve.obj" }
    },

    {   "when": { "north": true, "south": true, "east": false, "west": false,"up": false, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_straight" }
    },
    {   "when": { "north": false, "south": false, "east": true, "west": true,"up": false, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_straight" , "y": 90 }
    },
    {   "when": { "north": false, "south": false, "east": false, "west": false,"up": true, "down": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_straight" , "x": 270 }
    },
    {   "when": { "north": true, "south": false, "east": true, "west": false, "up": false, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" },
      "_comment" : "NE"
    },
    {   "when": { "north": true, "south": false, "east": false, "west": true, "up": false, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "y": 270 },
      "_comment" : "NW"
    },
    {   "when": { "north": true, "south": false, "east": false, "west": false, "up": true, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 270, "y": 270 },
      "_comment" : "NU"
    },
    {   "when": { "north": true, "south": false, "east": false, "west": false, "up": false, "down": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 90, "y": 270 },
      "_comment" : "ND"
    },
    {   "when": { "north": false, "south": true, "east": true, "west": false,"up": false, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "y": 90 },
      "_comment" : "SE"
    },
    {   "when": { "north": false, "south": true, "east": false, "west": true, "up": false, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "y": 180 },
      "_comment" : "SW"
    },
    {   "when": { "north": false, "south": true, "east": false, "west": false,"up": true, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 270, "y": 90 },
      "_comment" : "SU"
    },
    {   "when": { "north": false, "south": true, "east": false, "west": false,"up": false, "down": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 90, "y": 90 },
      "_comment" : "SD"
    },
    {   "when": { "north": false, "south": false, "east": true, "west": false,"up": true, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 270 },
      "_comment" : "EU"
    },
    {   "when": { "north": false, "south": false, "east": true, "west": false,"up": false, "down": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 90 },
      "_comment" : "ED"
    },
    {   "when": { "north": false, "south": false, "east": false, "west": true,"up": true, "down": false },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 270, "y": 180 },
      "_comment" : "WU"
    },
    {   "when": { "north": false, "south": false, "east": false, "west": true,"up": false, "down": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_core_corner" , "x": 90, "y": 180 },
      "_comment" : "WD"
    },


    {   "when": { "north": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_side" }
    },
    {   "when": { "east": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_side", "y": 90 }
    },
    {   "when": { "south": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_side", "y": 180 }
    },
    {   "when": { "west": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_side", "y": 270 }
    },
    {   "when": { "up": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_side", "x": 270 }
    },
    {   "when": { "down": true },
      "apply": { "model": "brassnsteam:block/pipes/iron/pipe_side", "x": 90 }
    }
  ]
}

Not sure what you mean by posting the model since its an obj, but heres its location: (rightmost file)

image.png.593678c6aeb0369b7fec2183f23533b7.png

 

Edited by MaxHyper
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I think that all you need to do is remove the ".obj" from

"apply": { "model": "brassnsteam:block/pipes/attachments/pipe_core_valve.obj" }

and it should work.

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17 hours ago, Cadiboo said:

I think that all you need to do is remove the ".obj" from


"apply": { "model": "brassnsteam:block/pipes/attachments/pipe_core_valve.obj" }

and it should work.

Nope, its still looking for a .json
Id like to point out that the other file named pipe_core_valve.json in the picture i sent was just a test and is unrelated.

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  • 4 weeks later...

Using .obj files seems to have changed a lot, I am assuming that 1.15 has removed the ForgeLoader for blockstates, as the multipart system really covers everything it did (except for loading .obj).

 

The new way to load models:

Your blockstate should use the vanilla method (without".obj" on the model name) e.g.:

{
  "variants": {
    "": {
      "model": "MODID:block/MODEL"
    }
  }
}

 

Every model, in the "models/block" path, now needs, MODEL.json, MODEL.obj, MODEL.mtl.

In your new MODEL.json file you need to tell it to use the OBJLoader from forge, and give the full resource path to your ".obj" file, eg:

{
  "loader": "forge:obj",
  "model": "MODID:models/block/MODEL.obj",
  "flip-v": true
}

 

 

The options you can include in the new MODEL.json file are:

{
	"loader": "forge:obj",  //to inform the resource loader to use OBJLoader
	"model": <<resource path to .obj file>>,
	"detectCullableFaces": true|false,
	"diffuseLighting": true|false,
	"flip-v": true|false,
	"ambientToFullbright": true|false,
	"materialLibraryOverride": <<resource path to material library if you need different materials on the same .obj>>,
}

 

Remember to update the paths for your textures in the .mlt file to use resource paths (without ".png").

 

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  • 2 weeks later...
  • 1 month later...

That's work for me, just imported on the json files, just the uv's are messed up, i'm registered the block normally without any function to import models or textures
on Forge 1.15.2 and mapping 20200408-1.15.1


model.json

{
  "parent": "forge:item/default",
  "loader": "forge:composite",
  "parts": {
    "part1": {
      "loader": "forge:obj",
      "model": "MOD_ID:models/block/mesh/model.obj"
      "textures": {
        "#YourMaterialName": "MOD_ID:blocks/modeltexture"
      }
    }
  }
}

 

blockstate.json

{
  "variants": {
    "": {"model":  "MOD_ID:block/model"}
  }
}

 

item.json
 

{
  "parent": "MOD_ID:block/model"
}

 

model.mtl

# Blender MTL File: 'mdoel.blend'
# Material Count: 1

newmtl YourMaterialName
Ns 225.000000
Ka 1.000000 1.000000 1.000000
Kd 0.800000 0.800000 0.800000
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.450000
d 1.000000
illum 2
map_Kd MOD_ID:blocks/texture
map_d MOD_ID:blocks/texture


 

Edited by Uollf
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